How much does an author's point of view influence her stories? And do those stories in turn influence us? Professor Anthony Gierzynski argues that reading Harry Potter can make people more tolerant of diversity, and more resistant to unreasonable authority. Andrew Slack, creator of the Harry Potter Alliance, explains how JK Rowling inspired him to try and change the world. And the HPA's Jackson Bird explains how being a political activist changed him in ways he never expected. (This is the final episode in my magic and fantasy series.)